Side guide for paper drilling machines



Sept. 17, 1940. J, 5 ET AL 2,215,009

SIDE GUIDE FOR PAPER DRILLING MACHINES Filed Nov. 8, 1959 (James Edgar Lee,

Hagan 'brma A \Tome Patented Sept. 17, 1940 UNITED STATES SIDE GUIDE. FOR PAPER DRILLING MACHINES James Edgar Lee, Grand Haven, Barney, Spring Lake, Mich and Freeman assignors to The Challenge Machinery Company, Grand Haven, Mich, a corporation of Michigan Application November 8, 1939,, Serial No. 303,376

7 Claims.

This invention relates to paper drilling machines, and is more particularly concerned with an adjustable side or end gauge for properly locating a pack of paper sheets underneath the drill at two or more different positions in which the drill is to be brought against the sheet pack for drilling a hole downwardly therethrough at each of several predetermined and preselected places for such holes.

Our invention is applied to paper drilling machines wherein a pack of paper sheets is placed upon a horizontal table and against a back gauge which is located lengthwise of the table, and also against an end gauge movably mounted on the back gauge and adapted to be set at a number of predetermined positions in the length of the back gauge. The drill is movable downwardly to pass through the sheet pack to drill holes in several sheets in line with each other. The back gauge, as stated, is fixed with respect to the table, the end gauge being adjustable to several different positions whereby the sheet pack after one drilling has been completed, may, after the adjustment of the end gauge to a different position, be moved to engage against said end gauge in its new position, and thus the drill will drill the sheet pack at a different place in accordance with the change of position of the end gauge which has been made.

The present invention has for its primary object a simple and efficient construction for controlling the positioning of the end gauge at any one of a plurality of positions.

Another object of the invention is the provision of stop means adjustably mounted with respect to the back gauge to cooperate with the end gauge for the attaiment of the ends stated.

Other objects and purposes of the invention will appear as the description proceeds.

To the accomplishment of the foregoing and related ends said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and following description set forth in detail certain means for carrying out our invention, said means constituting, however, but one of various ways in which the principle of the invention may be employed.

In said annexed drawing, wherein like reference numerals refer to like parts throughout the various views:

Fig. 1 is a fragmentary plan View of a drilling machine table showing our invention as applied thereto.

Fig. 2 is a vertical transverse section through the back gauge showing the end gauge in elevation.

Fig. 3 is an enlarged fragmentary plan view of a modification of the invention.

Fig. 4 is a. transverse vertical section through the back gauge showing a modification of the manner of mounting the end gauge, and

Fig. 5 is a perspective view of one of the stop members.

The drilling machine itself is of the conventional form including a horizontal table I which is supported at the proper height by any suitable and conventional means. The machine also includes the usual vertically movable drill 2, which is hollow for the purpose of drilling holes 1 in the sheet pack 3. At each side of the drill 2 is positioned a vertical rod 4 which has a spring 5 surrounding it for the purpose of maintaining in a lower position the presser foot 6. This part of the drilling machine is conventional and forms no part of the present invention.

The back gauge, generally indicated at I, is composed of a vertical leg 8 and a horizontal leg 9. The horizontal leg 9 has its bottom face in contact with the horizontal table I and is adapted to be positioned fixedly with respect thereto by any suitable means. The forward vertical face of the vertical leg 8 forms the back gauge against which the rear edges of the sheets in the sheet pack are to be placed when preparing for the drilling operation. I

One end of the back gauge 1 is provided with a member ID havinga slot ll therein, while the other end of the back gauge has a similar member l2 provided-with a slot l3. The slots H and I3 are in alinement with each other and are adapted to receive a scale bar M which has various distances marked off thereon for the purpose of accurately determining the distances between the holes I5 in the sheet pack 3, all as will be more clearly described hereinafter.

' One end of the scale bar I4 is provided with adjusting means consisting of a screw l6 threaded into one end of the scale bar 'I 4 and provided with a head I! which may be used to manually adjust the scale bar. The screw I6 is provided with a collar I8 which rotatably lies in a groove in the opening II and holds the screw against longitudinal movement.

Each of the stop means comprises a block l9 having a longitudinal slot 20 in the upper side thereof and a transverse slot 2| in the underside thereof which is of a size adapted to receive the scale bar l4. At the back side of each stop member Hi there is provided a thumb screw 22,

that the various stop members may be adjusted and fixed in their desired positions and When the scale bar is replaced all of the necessary,

adjustments will have been made prior to the beginning of the initial drilling operation.

The end gauge, which is indicated generally by the numeral 23, consists of a front vertical leg 24 and a rearwardly extending upper portion 25. The vertical leg 24 has an end face 26 thereon against which the side of the paper pack is placed during the drilling operation. The rearwardly extending portion 25 has a shoulder 21 thereon which abuts against the front vertical face of the vertical leg 8 of the back gauge 1. The upper side of the portion 25 continues to extend rearwardly as at 23 to provide a member having its lower side abutting against the upper edge of the vertical leg 8 and extends rearwardly and is adapted to be received into the longitudinal slot 20 of a stop member I9.

In one form of the invention, the shoulder 21 and the vertical leg 8 is provided with a slot for the purpose of receiving the key member 29 which aids in maintaining the end gauge in proper position. The operation of the device shown in Fig. 4 will be the same as that shown in Fig. 2 and just described, except that the key member 29 has been omitted.

The end gauge is slidable outwardly to disengage the member 28 from the slot 20 in the stop member !9 for the purpose of moving the end gauge to a difierent position for a successive drilling operation.

In the operation of the machine, after the stop members I 9 have each been set to a position so that the distance between the holes will be correct, and the scale bar M has been replaced and properly adjusted, the end gauge 23 is then positioned with its member 28 in the slot 20 of one of the stop members Hi. The sheet pack will then be positioned with the rear edges of the sheets against the face of the vertical leg 8 of the back gauge 1. The side edges of the sheets in the sheet pack will then be brought against the end face 26 of the vertical leg 24 on the end gauge 23 for properly positioning the sheet pack for the initial drilling operation. The first hole drilled will usually be the one on the extreme left of the sheet pack so that the end gauge with its member 28 will be positioned in the stop member nearest the drill. After the first hole has been drilled, the end gauge may be moved forwardly to disengage the member 28 from the slot 20 and then moved to the next successive stop member wherein the slot 29 thereof will receive the member 28 and the end gauge will be properly positioned for the next successive hole to be drilled in the sheet pack. This operation may take place as many times as there are holes to be drilled and the end gauge may then be brought back to the first stop member for the drilling of another sheet pack.

It will be seen from the foregoing that the construction here described is capable of easy and eificient adjustmentfor the drilling of holes in a sheet pack a predetermined and preselected distance apart. The operation is simple as well as accurate.

Other modes of carrying out our invention may be used instead of the one here explained, change being made as regards the structure herein disclosed provided, however, that the means stated by any of the following claims or the equivalent of such stated means be employed.

We, therefore, particularly point out and distinctly claim as our invention:

1. In a construction of the class described, a back gauge bar, an end gauge movable with respect to said back gauge, stop members adjustably mounted on said back gauge, and cooperating means on said end gauge and said stop members to hold said end gauge against movement in either direction longitudinally of said back gauge.

2. In a construction of the class described, a back gauge bar, an end gauge movable with respect to said back gauge, stop member's adjustably mounted on said back gauge, cooperating means on said end gauge and said stop members to hold said end gauge against movement in either direction longitudinally of said back gauge, and said end gauge being movable transversely of said back gauge to disengage said means from one of said stop members whereby the end gauge may be moved to the next successive stop memher.

3. In a construction of the class described, a back gauge bar, an end gauge movable with respect to said back gauge, stop members adjustably mounted on said back gauge having longitudinal slots therein, and means on said end gauge adapted to be received in said slots to prevent movement of said end gauge longitudinally of said back gauge bar.

4. The combination of elements defined in claim 3, wherein said end gauge is movable transversely of said back gauge bar to disengage said means from said slot whereby the end gauge will be free for movement longitudinally of said back gauge bar.

5. In a construction of the class described, a back gauge bar, a removable scale bar, an end gauge movable with respect to said back gauge bar, stop members adjustably mounted on said scale bar, and means extending rearwardly from said end gauge adapted to engage with said stop members to prevent movement of said end gauge longitudinally of said back gauge bar.

6. In a construction of the class described, a back gauge bar, a scale bar, an end gauge movable With respect to said back gauge bar, stop members adjustably having slots in the upper side thereof, and means extending from said end gauge adapted to be received by the slots in said stop, members, to prevent movement of the end gauge longitudinally of said back gauge bar.

7. The combination of elements defined in claim 6, wherein said end gauge is movable transversely of said back gauge to disengage said means from said slot whereby the end gauge will be free'for movement longitudinally of said back gauge bar. 1

JAMES EDGAR LEE. FREEMAN BARNEY.

mounted on said scale bar 

